The system is designed to identify the differential coating for tin plated steel strip. The marking technology is based on the impression of a pattern of lines obtained by the “ on fly” application of a solution of water and sodium dichromate by means of an arrangement of rotating rubber rings. The machine is designed for use in harsh industrial environment.
The unique feature of this system is that the manual replacement of the rings assembly is no more necessary for changing the pattern of lines. The machine is capable to automatically change the pattern according to the command received by the plant automation.